EP4241031A1 - Anhydrous exchanger - Google Patents

Anhydrous exchanger

Info

Publication number
EP4241031A1
EP4241031A1 EP21794410.7A EP21794410A EP4241031A1 EP 4241031 A1 EP4241031 A1 EP 4241031A1 EP 21794410 A EP21794410 A EP 21794410A EP 4241031 A1 EP4241031 A1 EP 4241031A1
Authority
EP
European Patent Office
Prior art keywords
tube
flanges
exchanger
fluid
tubes
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP21794410.7A
Other languages
German (de)
French (fr)
Inventor
Marco MANISSERO
Andrea MANISSERO
Matteo MANISSERO
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
FLli Manissero SNC
Original Assignee
FLli Manissero SNC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by FLli Manissero SNC filed Critical FLli Manissero SNC
Publication of EP4241031A1 publication Critical patent/EP4241031A1/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/16—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23G—COCOA; COCOA PRODUCTS, e.g. CHOCOLATE; SUBSTITUTES FOR COCOA OR COCOA PRODUCTS; CONFECTIONERY; CHEWING GUM; ICE-CREAM; PREPARATION THEREOF
    • A23G1/00—Cocoa; Cocoa products, e.g. chocolate; Substitutes therefor
    • A23G1/04—Apparatus specially adapted for manufacture or treatment of cocoa or cocoa products
    • A23G1/18—Apparatus for conditioning chocolate masses for moulding
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/10—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged one within the other, e.g. concentrically
    • F28D7/103—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged one within the other, e.g. concentrically consisting of more than two coaxial conduits or modules of more than two coaxial conduits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/003—Multiple wall conduits, e.g. for leak detection
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • F28F9/0229—Double end plates; Single end plates with hollow spaces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/0042—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for foodstuffs

Definitions

  • the present invention relates to an anhydrous exchanger.
  • it relates to a heat exchange system between two liquid and/or gaseous fluids without the possibility of mixing the two fluids.
  • the chocolate is kept fluid. This is done by keeping the chocolate hot by means of water that circulates in a heating cavity.
  • Obj ect of the present invention is solving the aforesaid prior art problems , by providing an anhydrous exchanger in which the mixing of the two fluids is prevented in any application, where mixing constitutes a problem .
  • the solution proposed by the anhydrous exchanger, claimed in Claim 1 consists in lining each exchange tube o f the preferred fluid with a tube having a slightly larger diameter .
  • the thermal conditioning fluid will only circulate externally to the larger diameter tube in a dedicated interspace .
  • the anhydrous exchanger is therefore characteri zed in that the two fluids circulate in distinct cavities separated by an open air chamber .
  • Figure 1 is a side sectional view of an embodiment of the anhydrous exchanger of the present invention.
  • Figure 2 is a sectional front view B-B of the internal flange of the exchanger of Figure 1 ;
  • Figure 3 is a front view of the external flange of the exchanger of Figure 1 ;
  • Figure 4 is a front sectional view of one of the internal tubes of the exchanger of Figure 1 .
  • the system is essentially a cylindrical heat exchanger with two or more third tubes B in a first tube A di sposed between two flanges Y, Z .
  • Every third tube B passes through the flanges Y, Z arranged at the ends .
  • the first tube A ends up against the flange Z and does not pass through it .
  • the thermal conditioning fluid water, glycol water, steam, or any other kind of fluid
  • the thermal conditioning fluid is provided to circulate .
  • the first tube A is equipped with at least two radial connections for inlet and outlet of the thermal conditioning fluid ( or the fluid to be conditioned) .
  • Each of these second tubes C is a few centimeters longer than every third tube B in order to exit from both ends of the third tube B .
  • Each of these second tubes C has an outside diameter that is smaller than the inside diameter of each third tube B .
  • an air chamber D is therefore formed .
  • each inner tube C passes through an outer flange Y arranged on each of the two sides .
  • the internal flanges Z and the external flanges Y are j oined together and a slot is made in the middle which makes each air chamber D "open” .
  • Every second tube C is crossed by the fluid to be conditioned . None prevents it from being passed through by the conditioning fluid .
  • the two fluids ( conditioning fluid or conditioned fucid) then circulate in independent chambers separated from each other by the air chamber D .
  • the outgoing fluid invades the volume occupied by air between the two cavities and exits from the appropriate slot made on one or both flanges . In this case , the exchanger 1 must be repaired or replaced . In the event of a puncture in one of the two cavities , the outgoing fluid cannot mix with the other fluid, at least until the other cavity begins to leak .
  • the purpose of the exchanger is therefore to prevent contamination of one or the other fluid and report the failure in the event of a hole in a cavity .
  • the exchanger is essentially made up of a single welded final body .
  • Each flange Y, Z has two or more holes . From one flange Y, Z to the other, there is a welded tube in each hole .
  • each flange Z Externally to each flange Z there is a second flange Y with two or more holes , with a diameter smaller than that of the innermost flange . From one external flange Y to the other, there is a welded tube in each hole .
  • Each hole of each external flange Y corresponds to each hole of the internal flange Z .
  • Each inner tube C passes completely through the tube B of a slightly larger diameter .
  • the external tube A is equipped with inlet and outlet fittings for the thermal conditioning fluid .
  • the external tube A is normally equipped with an outer cavity for thermal insulation .
  • the preferred fluid enters from each hole made on each flange and exits from the corresponding hole on the opposite flange .
  • the conditioning fluid and the conditioned fluid circulate in independent chambers separated from each other by an open air chamber D .
  • the anhydrous exchanger 1 of the invention is made in the following way .
  • the anhydrous exchanger 1 of the invention has an effective use in the industrial field. If it is necessary to heat fluid chocolate, this exchanger prevents pollution of the product by preventing the mixing of the two fluids and signals the perforation of one of the two cavities through a loss of water ( thermal conditioning fluid) or chocolate (preferred product or fluid) , through the specially made slot between the two flanges .
  • This feature or function is applicable to any other product or fluid, food or not .

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Food Science & Technology (AREA)
  • Polymers & Plastics (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Saccharide Compounds (AREA)
  • Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)

Abstract

An anhydrous exchanger (1) for food products is described, comprising: a first external tube (A) containing a thermal conditioning fluid; a plurality of second tubes (C) placed inside the first tube (A) and containing a privileged fluid to be subjected to heat exchange; a third tube (B) placed around each of the plurality of second tubes (C), optionally containing a thermal conditioning fluid; and a gap (D) placed as a separation between each of the second pipes (C) and each of the third pipes (B), the gap (D) being of the open air chamber type; wherein the first tube (A) is arranged between two flanges (Y, Z), while each of the third pipes (B) passes through the flanges (Y, Z) arranged at the ends of the first tube (A), while the first tube (A) ends up against the flanges (Y, Z) and does not cross them.

Description

ANHYDROUS EXCHANGER
The present invention relates to an anhydrous exchanger. In particular, it relates to a heat exchange system between two liquid and/or gaseous fluids without the possibility of mixing the two fluids.
Normal shell and tube exchangers (tubes in tubes) , in the event of a puncture of one of the two elements, are inevitably subject to the mixing of the two fluids with the consequent contamination of the privileged fluid. This, in food applications (for example, chocolate production) , obviously constitutes a serious problem.
In fact, during a production process, for example of chocolate, it is necessary that the chocolate is kept fluid. This is done by keeping the chocolate hot by means of water that circulates in a heating cavity.
If the wall between the two fluids gets punctured, water mixes with chocolate, causing considerable damage to production. In this case, it is necessary to repair or replace the exchanger because if both cavities are punctured, both fluids will try to escape from the slot, but the prevention of contamination of one or the other fluid and their mixing cannot be guaranteed .
Documents US-A1-2020/248972 , EP-A1-2 607 833 and US-A1- 2012 / 055660 describe anhydrous exchangers according to the prior art .
Obj ect of the present invention is solving the aforesaid prior art problems , by providing an anhydrous exchanger in which the mixing of the two fluids is prevented in any application, where mixing constitutes a problem .
The solution proposed by the anhydrous exchanger, claimed in Claim 1 , consists in lining each exchange tube o f the preferred fluid with a tube having a slightly larger diameter . The thermal conditioning fluid will only circulate externally to the larger diameter tube in a dedicated interspace .
The anhydrous exchanger is therefore characteri zed in that the two fluids circulate in distinct cavities separated by an open air chamber .
The present invention will be better described by some preferred but non-limiting embodiments thereof , with reference to the attached drawings , in which :
Figure 1 is a side sectional view of an embodiment of the anhydrous exchanger of the present invention;
Figure 2 is a sectional front view B-B of the internal flange of the exchanger of Figure 1 ; Figure 3 is a front view of the external flange of the exchanger of Figure 1 ; and
Figure 4 is a front sectional view of one of the internal tubes of the exchanger of Figure 1 .
The system is essentially a cylindrical heat exchanger with two or more third tubes B in a first tube A di sposed between two flanges Y, Z .
Every third tube B passes through the flanges Y, Z arranged at the ends .
The first tube A ends up against the flange Z and does not pass through it .
In the volume between the outermost first tube A and the various third pipes B, the thermal conditioning fluid (water, glycol water, steam, or any other kind of fluid) is provided to circulate . Nothing prevents the fluid to be conditioned ( food or not ) from circulating in that volume .
The first tube A is equipped with at least two radial connections for inlet and outlet of the thermal conditioning fluid ( or the fluid to be conditioned) .
In every third tube B which constitutes the multi-tube , there is a second tube C .
Each of these second tubes C is a few centimeters longer than every third tube B in order to exit from both ends of the third tube B . Each of these second tubes C has an outside diameter that is smaller than the inside diameter of each third tube B .
Between each pair of third and second tubes B and C, an air chamber D is therefore formed .
All the ends of each inner tube C pass through an outer flange Y arranged on each of the two sides .
The internal flanges Z and the external flanges Y are j oined together and a slot is made in the middle which makes each air chamber D "open" .
Every second tube C is crossed by the fluid to be conditioned . Nothing prevents it from being passed through by the conditioning fluid .
The two fluids ( conditioning fluid or conditioned f luid) then circulate in independent chambers separated from each other by the air chamber D .
I f one of the two cavities ( conditioning fluid or conditioned fluid) is punctured, one or the other f luid comes out of the slot signaling the leak .
In the event of a puncture in one of the two cavities , the outgoing fluid invades the volume occupied by air between the two cavities and exits from the appropriate slot made on one or both flanges . In this case , the exchanger 1 must be repaired or replaced . In the event of a puncture in one of the two cavities , the outgoing fluid cannot mix with the other fluid, at least until the other cavity begins to leak .
The purpose of the exchanger is therefore to prevent contamination of one or the other fluid and report the failure in the event of a hole in a cavity .
The exchanger is essentially made up of a single welded final body .
Externally, a tube is visible , closed by the two cylindrical flanges Y, Z . Each flange Y, Z has two or more holes . From one flange Y, Z to the other, there is a welded tube in each hole .
Externally to each flange Z there is a second flange Y with two or more holes , with a diameter smaller than that of the innermost flange . From one external flange Y to the other, there is a welded tube in each hole .
Each hole of each external flange Y corresponds to each hole of the internal flange Z .
Each inner tube C passes completely through the tube B of a slightly larger diameter .
By doing so , two isolated chambers are obtained for each fluid . I f one of the two chambers is perforated, the relative fluid will come out from a special seat obtained between the two flanges Y, Z .
In this circumstance , it will be advisable to repair or replace the exchanger 1 .
The external tube A is equipped with inlet and outlet fittings for the thermal conditioning fluid .
The external tube A is normally equipped with an outer cavity for thermal insulation .
The preferred fluid ( for example chocolate ) enters from each hole made on each flange and exits from the corresponding hole on the opposite flange .
The conditioning fluid and the conditioned fluid circulate in independent chambers separated from each other by an open air chamber D .
The anhydrous exchanger 1 of the invention is made in the following way .
I . Make the two radial holes for inlet and outlet o f the thermal conditioning fluid at one and the other end of the tube .
I I . Secure the tube to a pair of tripods . III. Point each inner flange to each end of the tube. Maintain the parallelism between each flange and the coaxiality of each hole.
IV. Insert a tube (larger diameter pipes) in each hole from one flange to the other.
V. Weld the ends of each tube to each hole on one and on the other flange.
VI. Weld each flange to the outer tube.
VII. Weld the inlet and outlet fittings of the thermal conditioning fluid to the external tube.
VIII. Bolt an outer flange to each inner flange by matching each hole.
IX. Insert a tube into each hole from one external flange to the other (smaller diameter pipes) .
X. Weld the end of each tube to each hole on one and the other external flange.
XI . Mount any thermal insulation cavity around the outermost tube.
The anhydrous exchanger 1 of the invention has an effective use in the industrial field. If it is necessary to heat fluid chocolate, this exchanger prevents pollution of the product by preventing the mixing of the two fluids and signals the perforation of one of the two cavities through a loss of water ( thermal conditioning fluid) or chocolate (preferred product or fluid) , through the specially made slot between the two flanges .
This feature or function is applicable to any other product or fluid, food or not .

Claims

1. Anhydrous exchanger (1) for food products, comprising:
- at least one first external tube (A) containing a thermal conditioning fluid;
- a plurality of second tubes (C) placed inside said first tube (A) and containing a privileged fluid to be subjected to heat exchange;
- a third tube (B) placed around each of the plurality of second tubes (C) , optionally containing a thermal conditioning fluid; and
- a gap (D) placed as a separation between each of said second pipes (C) and each of said third pipes (B) , said gap (D) being of the open air chamber type; wherein said first tube (A) is arranged between two flanges (Y, Z) , while each of said third tubes (B) passes through the flanges (Y, Z) arranged at the ends of said first tube (A) , while said first tube (A) ends up against the flanges (Y, Z) and does not go through them.
2. Anhydrous exchanger (1) for food products, comprising: at least one first external tube (A) containing a privileged fluid to be subjected to heat exchange;
- a plurality of second tubes (C) placed inside said first tube (A) and containing a thermal conditioning fluid;
9 - a third tube (B) placed around each of the plurality of second tubes (C) , optionally containing a thermal conditioning fluid; and
- a gap (D) placed as a separation between each of said second pipes (C) and each of said third pipes (B) , said gap (D) being of the open air chamber type; wherein said first tube (A) is arranged between two flanges (Y, Z) , while each of said third tubes (B) passes through the flanges (Y, Z) arranged at the ends of said first tube (A) , while said first tube (A) ends up against the flanges (Y, Z) and does not go through them.
3. Anhydrous exchanger (1) according to any of the preceding claims, characterized in that said first tube (A) is equipped with at least two radial connections for inlet and outlet of the thermal conditioning fluid or the fluid to be conditioned.
4. Anhydrous exchanger (1) according to any one of the preceding claims, characterized in that each of said second tubes (C) has a length greater than a few centimeters than every third tube (B) in order to exit from both ends of the third tube (B) , each of said second tubes (C) having an external diameter smaller than the internal diameter of each third tube (B) .
5. Anhydrous exchanger (1) according to any one of the preceding claims, characterized in that all the ends of each second tube (C) pass through an external flange (Y) arranged on each of the two sides.
6. Anhydrous exchanger (1) according to any one of the preceding claims, characterized in that the internal flanges (Z) and the external flanges (Y) are joined together and a slot is made in the middle which opens each cavity (D) .
11
EP21794410.7A 2020-11-04 2021-10-18 Anhydrous exchanger Pending EP4241031A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT102020000026218A IT202000026218A1 (en) 2020-11-04 2020-11-04 Anhydrous exchanger
PCT/IT2021/050335 WO2022097183A1 (en) 2020-11-04 2021-10-18 Anhydrous exchanger

Publications (1)

Publication Number Publication Date
EP4241031A1 true EP4241031A1 (en) 2023-09-13

Family

ID=74194929

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21794410.7A Pending EP4241031A1 (en) 2020-11-04 2021-10-18 Anhydrous exchanger

Country Status (3)

Country Link
EP (1) EP4241031A1 (en)
IT (1) IT202000026218A1 (en)
WO (1) WO2022097183A1 (en)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2153089B (en) * 1984-01-24 1988-01-20 Foster Wheeler Energy Corp Leak detecting matrix for heat exchangers
US5048597A (en) * 1989-12-18 1991-09-17 Rockwell International Corporation Leak-safe hydrogen/air heat exchanger in an ACE system
JP2008107013A (en) * 2006-10-26 2008-05-08 Sumitomo Light Metal Ind Ltd Heat transfer tube having leakage detecting mechanism and heat exchanger using the same
US20120055660A1 (en) * 2010-09-02 2012-03-08 Cerro Flow Products Llc Flattened fluid conduits for use in heat exchangers and other systems, and associated methods of manufacture and use
EP2607833A1 (en) * 2011-12-22 2013-06-26 Tetra Laval Holdings & Finance S.A. A module for improved running time in tubular heat exchangers
DK177774B1 (en) * 2013-04-11 2014-06-23 Spx Flow Technology Danmark As HYGIENIC HEAT EXCHANGE AND METHOD FOR PREPARING A HYGIENIC HEAT EXCHANGE

Also Published As

Publication number Publication date
IT202000026218A1 (en) 2021-02-04
WO2022097183A1 (en) 2022-05-12

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